The client's marketing team had triple-checked the site. Colors looked good, images had alt text, the design was approved. Two days before launch, they ran AccessBatch on staging and it flagged 47 issues. Three of them were dealbreakers.
Issue one: the hero image had decorative text, but screen readers read it as meaningless decoration. Issue two: the contact form had placeholders where labels should be. Issue three: the color contrast on the CTA button was 3.2:1 against a requirement of 4.5:1.
The client's initial reaction was to close the budget conversation. Their compliance officer saw the report and went quiet. The deal was conditional on WCAG AA compliance. Failing it meant losing the contract.
We fixed the three issues in an afternoon. The site launched on time. The client now runs AccessBatch on every staging deploy as part of CI. Fastest way to avoid the slow, expensive way to learn about accessibility failures.